Install & Update Kernel 4.19-rc5 on Linux Ubuntu

The release statement says “The diffstat is a bit higher than previous -rc5’s, but the number of trees pulled is lower, so overall, pretty much all is on track. I’m not seeing any major “these bugs are not being fixed!” type of reports, so I can hope that the initial churn that -rc1 threw at everyone is under control. The majority size-wise of changes here are with more tests being added and fixed up, but there is also the usual networking, x86, sound, drm, ppc, and other fixes.” https://lkml.org/lkml/2018/9/23/180